11361731000 has 64 divisors (see below), whose sum is σ = 26640900000. Its totient is φ = 4535385600.

The previous prime is 11361730993. The next prime is 11361731009. The reversal of 11361731000 is 13716311.

It is a super-2 number, since 2×11361731000² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11361731009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487616 + ... + 510384.

Almost surely, 2^11361731000 is an apocalyptic number.

11361731000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11361731000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13320450000).

11361731000 is an abundant number, since it is smaller than the sum of its proper divisors (15279169000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11361731000 is a wasteful number, since it uses less digits than its factorization.

11361731000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23289 (or 23275 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 23.

The spelling of 11361731000 in words is "eleven billion, three hundred sixty-one million, seven hundred thirty-one thousand".